I have the same question. Just like this:
Kind Status Priority Description Resource In Folder Location
Error *** [ext_flash.flash] Error 5 hello_world_1
Error 32 AM - (??) elf2flash: Error generating Flash file, exiting[Oct 26, 2004 8] hello_world_1 line 10
Error 32 AM - (??) elf2flash: Error reading boot copier[Oct 26, 2004 8] hello_world_1 line 10
Error 32 AM - (??) elf2flash: Read error: File not found: /boot_loader_cfi.srec[Oct 26, 2004 8] hello_world_1 line 10
I dont understand the "File not found: /boot_loader_cfi.srec", because the file boot_loader_cfi.srec is really there!